diff --git a/Misc/ACKS b/Misc/ACKS
index de27616..a0206ab 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -325,6 +325,7 @@
 John J. Lee
 Luc Lefebvre
 Kip Lehman
+Joerg Lehmann
 Marc-Andre Lemburg
 William Lewis
 Robert van Liere